CN112533728A - Device and method for producing at least one rolling element and method for machining at least one control wheel of such a device - Google Patents
Device and method for producing at least one rolling element and method for machining at least one control wheel of such a device Download PDFInfo
- Publication number
- CN112533728A CN112533728A CN201980051554.5A CN201980051554A CN112533728A CN 112533728 A CN112533728 A CN 112533728A CN 201980051554 A CN201980051554 A CN 201980051554A CN 112533728 A CN112533728 A CN 112533728A
- Authority
- CN
- China
- Prior art keywords
- grinding
- control wheel
- peripheral
- wheel
- rolling elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000003754 machining Methods 0.000 title claims description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000009763 wire-cut EDM Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/26—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/307—Means for supporting work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
- B24B53/081—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like by means of a template
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Rolling Contact Bearings (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
An apparatus 1 for forming curved side surfaces 3 on rolling elements 2 of a rolling bearing, having a grinding device 4 for grinding the curved side surfaces 3 and at least one holding device 6 for holding the rolling elements 2 in the case and/or during grinding by means of the grinding device 4, wherein the at least one holding device 6 is at least one control wheel 8 with a convexly shaped peripheral feed surface 9.
Description
Technical Field
The present invention relates to an apparatus for producing curved side surfaces on rolling elements of a rolling element bearing having the features of the preamble of claim 1, and to a method for producing curved side surfaces on rolling elements having the features of claim 7. The invention also relates to a method for machining at least one control wheel of the device having the features of claim 8.
Background
The side surfaces of rolling elements, such as rollers, are typically machined by grinding. It is known to use grinding devices with curved grinding surfaces for grinding, as disclosed for example in document CN 103821828A.
In order to produce needles with curved side surfaces, it is proposed in document CN 105033786 a to arrange the needles on a curved plate and grind them.
It is also known to arrange tapered rollers on so-called crowned wheels and thereby feed them to grinding wheels for grinding curved side surfaces.
Disclosure of Invention
It is an object of the present invention to provide an alternative apparatus and an alternative method for producing curved side surfaces on rolling elements. This object is achieved by a device having the features of claim 1, a method for producing a curved lateral surface having the features of claim 7 and a method for machining at least one control wheel of the device having the features of claim 8. Preferred or advantageous embodiments of the invention result from the following description and/or the dependent claims of the drawings.
A device is proposed which is designed to produce curved, in particular arched, side surfaces on the rolling elements of a rolling element bearing. The rolling elements are preferably designed as tapered rollers which can be integrated in a tapered roller bearing.
The apparatus comprises a grinding device designed to grind the curved side surfaces on the rolling elements. The grinding device is preferably designed as a grinding wheel with a concavely shaped peripheral grinding surface.
Furthermore, the device comprises at least one holding device which is designed to hold the rolling elements for grinding by the grinding device and/or during grinding by the grinding device. In addition, the holding device is optionally also designed for feeding the rolling elements to the grinding device.
The at least one holding device is designed as at least one control wheel with a convexly shaped peripheral feed surface. The device preferably has a plurality of control wheels which are arranged adjacent to one another and/or connected to one another in a rotationally fixed manner, in order to simultaneously produce a plurality of rolling elements having curved side surfaces.
When the tapered rollers are arranged as holding devices for grinding the side surfaces on a so-called crowning wheel, the possible curvature or camber of the side surfaces, in particular due to the weight of the tapered rollers, is limited in terms of production technology. Tapered rollers can therefore only be produced with geometric limitations.
An advantage of the convexly shaped peripheral infeed surface of the at least one control wheel is that these limitations can be overcome and/or reduced when the rolling elements are arranged on the convexly shaped peripheral infeed surface for grinding the side surface in a curved manner.
For example, the at least one control wheel and/or the convexly shaped peripheral feed surface are formed from a ceramic material, a synthetic resin-bonded material or a metallic material. This has the advantage that the peripheral feed surface, especially if it is formed of a ceramic material or a synthetic resin-bonded material, can be convex-shaped by means of at least one finishing device of the apparatus, for example by means of one or more finishing devices. In order to carry out the dressing of the holding device, in particular of the at least one control wheel, in a preferred embodiment of the invention the apparatus comprises a control device which is designed to control the at least one dressing device. In particular, the control means may comprise NC control.
The at least one dressing device is designed and arranged to dress, in particular, the grinding device, in particular to shape, calibrate and/or sharpen the peripheral grinding surface of the grinding wheel in a concave manner. For example, the dressing device is designed as a rotatable dressing roller or as a stationary dressing tool. Optionally, at least one of the dressing devices has a coating made of diamond or boron nitride (CBN) so that material can be removed from the holding device and the grinding device, so that a convex profile or a concave profile can be introduced.
Since the at least one dressing device is provided not only for dressing the grinding device but also for shaping the holding device, additional machining machines for machining the peripheral feed surface, such as grinding lathes or hard lathes, can advantageously be dispensed with. This avoids complex handling of the control wheel from another processing machine to the installation. This can therefore save costs.
In the case where the holding means, in particular the at least one control wheel, is made of a metallic material, it is preferred to form the convex profile on the peripheral feeding surface of the at least one control wheel by wire electrical discharge machining.
Another object of the present invention is a method for producing curved, in particular arched, side surfaces on rolling elements of a rolling element bearing, using an apparatus according to the previous description and/or according to claims 1 to 6.
As part of the method, rolling elements are arranged on the convexly shaped peripheral feed surface of at least one control wheel. The rolling elements are preferably fed to the grinding device in this way. The curved side surfaces are then ground, in particular by means of concavely shaped peripheral grinding surfaces of the grinding wheel. In the context of this method, it is preferred that the at least one control wheel and the grinding wheel are rotated in opposite directions during the grinding of the curved side surface.
A method for machining at least one control wheel as described in the preceding description and/or in any of claims 1 to 6 constitutes a further object of the invention.
As part of the method, the peripheral feed surface of the at least one control wheel is machined and/or projection-formed by means of a finishing device of the apparatus, in particular if the at least one control wheel and/or the peripheral feed surface are formed from a ceramic material or a synthetic resin-bonded material. The control device preferably controls the dressing device to perform the convex forming of the peripheral feed surface of the at least one control wheel.
Alternatively, within the scope of the method, the peripheral feed surface of the at least one control wheel may be machined and/or convex shaped by wire electrical discharge machining. This is particularly true when at least one of the control wheels and/or the peripheral feed surface is formed of a metal-bonded material.
Drawings
Additional features, advantages and effects of the invention are set forth in the description which follows of preferred embodiments of the invention. In the drawings:
FIG. 1 shows a prior art apparatus having a crowned roller as a feed and hold device and a grinding device for producing a tapered roller with curved side surfaces;
fig. 2 shows an apparatus with a control wheel as a feed and holding device and with a grinding device for producing rolling elements with curved side surfaces.
Detailed Description
Fig. 1 shows a prior art device 50 which is designed to produce curved, in particular arched, lateral surfaces 52 on a tapered roller 51. The apparatus 50 comprises a grinding device 53 and a plurality of rotatable crowned rollers 55 arranged adjacent to each other in a row and rotating together. Each of the crest rollers 55 has two crests 56 in longitudinal section, on which the tapered rollers 51 are placed. The grinding device 53 is designed as a rotatable grinding wheel with a grinding surface 54. The grinding wheel and the crowned rollers 55 rotate in opposite directions.
Each of the crowned rollers 55 forms a holding device for exactly one tapered roller 51 which is arranged on the crowned roller 55 and thus is in contact with the grinding surface 54. The tapered roller 51 rotates with the crowned roller 55 and is ground by the grinding surface 54 of the grinding wheel, creating a curved side surface 52.
With the prior art device 50, the production of the curvature or camber of the side surface 52 on the tapered roller 51 is limited in terms of production technology, in particular due to the arrangement on the crowned roller 55 and due to the self-weight of the tapered roller. Therefore, geometric constraints on the curvature or camber of the side surfaces must be accepted.
In fig. 2, a device 1 is shown which is designed to produce curved, in particular arched, side surfaces 3 on rolling elements 2 of a rolling element bearing. The rolling elements are designed as tapered rollers 2. With the device 1, the production technical limitations of the device 50 of fig. 1 can be reduced or even overcome.
The apparatus 1 comprises a grinding device 4 which is designed as a grinding wheel 7 which is rotatable in a first direction of rotation R1. The grinding device 4 has a concavely shaped peripheral grinding surface 5 with which the curved side surfaces 3 on the tapered rollers 2 can be ground.
The apparatus 1 comprises holding means 6 for holding the tapered roller 2 during grinding of the curved side surface 4.
The holding device 6 is designed as a plurality of rotatable control wheels 8 which are arranged adjacent to one another in a row. The control wheel is rotatably mounted and rotates together in a second rotational direction R2, which is opposite the first rotational direction R1. Each control wheel 8 has a convexly shaped peripheral feed surface 9 on which the tapered rollers 2 can be arranged and mounted. Each control wheel 8 and/or each peripheral feed surface 8 is formed of a ceramic material, a synthetic resin-bonded material or a metallic material.
Due to the mounting on the convexly shaped peripheral feed surface 9, curved, in particular arched, side surfaces 3 on the tapered rollers 2 can be produced as freely as possible geometrically.
As shown in fig. 3, the apparatus 1 comprises a dressing device 10 for dressing the grinding device 4 and the holding device 6. The finishing assembly 10 is designed as a stationary finishing assembly. Alternatively, it may be designed as a rotary trimming device. The apparatus 1 further comprises control means 11 for controlling the finishing device 10. The control device 11 may be designed, for example, as an NC control.
The dressing device 10 is arranged to shape, sharpen and/or calibrate the peripheral grinding surface 5 of the grinding wheel 7. This can also occur during grinding of the side surfaces 3 of the tapered rollers 2 in order to avoid dulling.
In addition, dressing device 10 is provided to convex-form peripheral feed surface 9 of control wheel 8, in particular if control wheel 8 and/or peripheral feed surface 9 are formed of a ceramic material or a synthetic resin-bonded material. The convex shaping of the peripheral feed surface 9 by the trimming device 10 takes place before the control wheel 8 is used as a holding device 6 in the apparatus 1.
Advantageously, no additional machining machine (e.g., grinding machine or hard turning machine) is required to shape the peripheral feeding surface 9, but an already existing dressing device 10 can be used. This saves costs for purchasing additional processing machines and advantageously reduces handling and management expenses for shaping the peripheral feed surface 9 of the control wheel 8 and for transporting the holding device 6 to the apparatus 1.
The use of a ceramic control wheel or a synthetic resin bonded control wheel eliminates externally excited vibrations caused by force triangulation between the grinding wheel, control wheel and support rail. Here, the control wheel serves as a damping element which enables the use of a ceramic-bonded grinding wheel.
In the case where control wheel 8 and/or peripheral feed surface 8 are formed of a metal-bonded material, the concave profile is introduced into peripheral feed surface 9 of control wheel 8 by wire-cut electrical discharge machining.
R1 first direction of rotation R2 second direction of rotation
Claims (10)
1. A device (1) for forming curved lateral surfaces (3) on rolling elements (2) of a rolling bearing,
the device comprises a grinding device (4) for grinding the curved lateral surface (3) and at least one holding device (6) for holding the rolling elements (2) during and/or during grinding by means of the grinding device (4),
wherein the at least one holding device (6) is at least one control wheel (8) with a convexly shaped peripheral feed surface (9).
2. The apparatus (1) according to claim 1, characterized in that said at least one control wheel (8) and/or said peripheral feeding surface (9) are made of ceramic material, synthetic resin-bonded material or metallic material.
3. An apparatus (1) according to claim 1 or 2, characterized in that the grinding device (4) is a grinding wheel (7) having a concavely shaped peripheral grinding surface (5).
4. Apparatus (1) according to any one of the preceding claims, characterized in that it has at least one dressing device (10) for sharpening and/or calibrating the peripheral grinding surface (5) of the grinding wheel (7) and/or for shaping the peripheral grinding surface (5) of the grinding wheel (7) and/or the peripheral feed surface (9) of the at least one control wheel (8).
5. Apparatus (1) according to claim 4, characterized in that the peripheral grinding surface (5) of the grinding wheel (7) is concavely shaped by means of the at least one dressing device (10) and/or the peripheral feed surface (9) of the at least one control wheel (8) is convexly shaped by means of the at least one dressing device (10).
6. Apparatus (1) according to claim 4 or 5, characterized in that said apparatus (1) comprises control means (11) for controlling said at least one finishing device (10).
7. Method for producing curved lateral surfaces (3) on rolling elements (2) of a rolling bearing with a device (1) according to any one of the preceding claims, characterized in that the rolling elements (2) are arranged on the convexly shaped peripheral feed surface (9) of the at least one control wheel (8) and the curved lateral surfaces (3) are ground on the rolling elements (2).
8. Method for machining the at least one control wheel (8) according to claim 7, characterized in that the peripheral feed surface (9) of the at least one control wheel (8) is machined and/or convex shaped by means of the at least one dressing device (10).
9. Method according to claim 8, characterized in that said control device (11) controls said at least one finishing device (10) to perform a convex forming of said peripheral feeding surface (9) of said at least one control wheel (8).
10. Method according to claim 8 or 9, characterized in that the peripheral feed surface (8) of the at least one control wheel (8) is machined and/or convex shaped by wire electrical discharge machining.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018125825.9A DE102018125825A1 (en) | 2018-10-18 | 2018-10-18 | Device and method for manufacturing at least one rolling element and method for processing at least one regulating disk of the device |
| DE102018125825.9 | 2018-10-18 | ||
| PCT/DE2019/100900 WO2020078514A1 (en) | 2018-10-18 | 2019-10-16 | Device and method for producing at least one rolling element and method for processing at least one control wheel of the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112533728A true CN112533728A (en) | 2021-03-19 |
| CN112533728B CN112533728B (en) | 2023-07-14 |
Family
ID=68502788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980051554.5A Active CN112533728B (en) | 2018-10-18 | 2019-10-16 | Device and method for producing at least one rolling element and method for machining at least one control wheel of the device |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11980996B2 (en) |
| EP (1) | EP3867008B1 (en) |
| JP (1) | JP7179984B2 (en) |
| KR (1) | KR20210075062A (en) |
| CN (1) | CN112533728B (en) |
| DE (1) | DE102018125825A1 (en) |
| WO (1) | WO2020078514A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5699143B2 (en) | 2009-07-09 | 2015-04-08 | アール ツリー イノベーションズ エルエルシー | Interbody device with flexibility |
| CN113732844A (en) * | 2021-08-09 | 2021-12-03 | 武汉钢铁有限公司 | Method and device for grinding work roll |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE517148C (en) * | 1928-06-25 | 1931-02-12 | Cincinnati Grinders Inc | Process for centerless grinding of rolls with concave or convex surface lines as well as for chamfering cylindrical rolls |
| US2409320A (en) * | 1944-03-30 | 1946-10-15 | Gen Motors Corp | Grinding of rollers |
| US2795900A (en) * | 1954-07-28 | 1957-06-18 | Modler Hans | Machine for grinding and superfinishing barrel-shaped rollers and the like |
| US2930373A (en) * | 1959-02-26 | 1960-03-29 | Cincinnati Milling Machine Co | Grinding machine truing mechanism |
| DE1179826B (en) * | 1962-01-18 | 1964-10-15 | Hans Modler Dipl Ing | Machine for centerless grinding of round workpieces |
| CN103821828A (en) * | 2014-02-21 | 2014-05-28 | 山东东阿钢球集团有限公司 | Production method of precise tapered roller |
| CN105033786A (en) * | 2015-07-28 | 2015-11-11 | 湖北钱潮精密件有限公司 | Grinding device for logarithmic convexity of needle roller and grinding method thereof |
| CN106181678A (en) * | 2016-07-04 | 2016-12-07 | 成都芬尼克兹机电设备有限公司 | A kind of aviation high-precision bearing roller processing method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1590855A (en) * | 1968-11-06 | 1970-04-20 | ||
| JPS5416584B2 (en) | 1971-10-20 | 1979-06-23 | ||
| JP2002059345A (en) | 2000-08-18 | 2002-02-26 | Toshin Technical:Kk | Work grinding method in centerless grinding machine |
| JP4923369B2 (en) | 2001-09-17 | 2012-04-25 | 日本精工株式会社 | Centerless grinding machine |
| US7163434B2 (en) * | 2004-09-27 | 2007-01-16 | Ceradyne, Inc. | Method and apparatus for generating complex shapes on cylindrical surfaces |
| DE102009024209B4 (en) * | 2009-06-08 | 2012-12-06 | Erwin Junker Maschinenfabrik Gmbh | METHOD AND DEVICE FOR MULTILAYER GRINDING OF WORKPIECES |
| JP5892526B2 (en) * | 2011-03-24 | 2016-03-23 | エルヴィン ユンカー マシーネンファブリーク ゲゼルシャフト ミットベシュレンクテル ハフツングＥｒｗｉｎ Ｊｕｎｋｅｒ Ｍａｓｃｈｉｎｅｎｆａｂｒｉｋ ＧｍｂＨ | Grinding machine in which a grinding spindle unit is pivotally mounted and a method for pivoting a grinding spindle unit on a grinding machine |
| WO2020024879A1 (en) * | 2018-07-28 | 2020-02-06 | 天津大学 | Grinding disk kit for use in convex roller rolling surface finishing, apparatus, and method |
-
2018
- 2018-10-18 DE DE102018125825.9A patent/DE102018125825A1/en active Pending
-
2019
- 2019-10-16 US US17/280,965 patent/US11980996B2/en active Active
- 2019-10-16 JP JP2021521209A patent/JP7179984B2/en active Active
- 2019-10-16 CN CN201980051554.5A patent/CN112533728B/en active Active
- 2019-10-16 KR KR1020217002567A patent/KR20210075062A/en unknown
- 2019-10-16 EP EP19801193.4A patent/EP3867008B1/en active Active
- 2019-10-16 WO PCT/DE2019/100900 patent/WO2020078514A1/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE517148C (en) * | 1928-06-25 | 1931-02-12 | Cincinnati Grinders Inc | Process for centerless grinding of rolls with concave or convex surface lines as well as for chamfering cylindrical rolls |
| US2409320A (en) * | 1944-03-30 | 1946-10-15 | Gen Motors Corp | Grinding of rollers |
| US2795900A (en) * | 1954-07-28 | 1957-06-18 | Modler Hans | Machine for grinding and superfinishing barrel-shaped rollers and the like |
| US2930373A (en) * | 1959-02-26 | 1960-03-29 | Cincinnati Milling Machine Co | Grinding machine truing mechanism |
| DE1179826B (en) * | 1962-01-18 | 1964-10-15 | Hans Modler Dipl Ing | Machine for centerless grinding of round workpieces |
| GB1024772A (en) * | 1962-01-18 | 1966-04-06 | Hans Modler | Centreless grinding device |
| CN103821828A (en) * | 2014-02-21 | 2014-05-28 | 山东东阿钢球集团有限公司 | Production method of precise tapered roller |
| CN105033786A (en) * | 2015-07-28 | 2015-11-11 | 湖北钱潮精密件有限公司 | Grinding device for logarithmic convexity of needle roller and grinding method thereof |
| CN106181678A (en) * | 2016-07-04 | 2016-12-07 | 成都芬尼克兹机电设备有限公司 | A kind of aviation high-precision bearing roller processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022505248A (en) | 2022-01-14 |
| DE102018125825A1 (en) | 2020-04-23 |
| CN112533728B (en) | 2023-07-14 |
| WO2020078514A1 (en) | 2020-04-23 |
| EP3867008A1 (en) | 2021-08-25 |
| JP7179984B2 (en) | 2022-11-29 |
| KR20210075062A (en) | 2021-06-22 |
| US11980996B2 (en) | 2024-05-14 |
| US20210354261A1 (en) | 2021-11-18 |
| EP3867008B1 (en) | 2024-04-03 |
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